package com.atguigu.gulimall.product.config;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @description:
 * @author: BlueSky
 * @create: 2021-08-19 14:10
 **/
@Configuration
public class MybatisConfig {
	// 旧版
	@Bean
	public PaginationInterceptor paginationInterceptor() {
		PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
		// 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
		paginationInterceptor.setOverflow(true);
		// 设置最大单页限制数量，默认 500 条，-1 不受限制
		// paginationInterceptor.setLimit(2);
		// 开启 count 的 join 优化,只针对部分 left join
		paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
		return paginationInterceptor;
	}

}
